Previously builds were done with Ubuntu 16.04, and now we are using
18.04. Thus the generated binaries will no longer work for
Ubuntu 16.04 and Debian 9 users, both of which are outside of their
support window and aren't supported by Abseil. RHEL users are
unaffected, as the binaries already didn't work on RHEL 7 and they will
remain working with RHEL 8. FWIW, Ubuntu 18.04 will leave its support
window in June.
* Added s390x platform support
* Adapt to existing platform naming scheme
* Updated s390_64 library whitelist
* Use g++ compiler version 8.x for s390x
* Introduced dedicated Docker container for building s390x artifacts Minor fix
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Signed-off-by: Dirk Haubenreisser <haubenr@de.ibm.com>
Co-authored-by: Eric Anderson <ejona@google.com>